Angus · Scotland
Lownie Moor Window Mastic
Our applicators work in Lownie Moor on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Cracked sealant at the sill ends
- Black, perished sealant on frames
- Rain getting in at the frame or under the sill
Common questions in Lownie Moor
Is Lownie Moor within the area you cover?
Yes, Lownie Moor is covered. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
What guarantee comes with window mastic in Lownie Moor?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Can you seal the gap between the frame and the plaster indoors?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses.
Do you work for landlords and businesses?
Yes, often. We can quote for several properties at once, and between tenancies is a good time for the work.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.
Are you insured?
Yes. We’re fully insured.
Can I paint over the new sealant?
Most silicone cannot be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
About our window mastic in Lownie Moor
Around Lownie Moor we seal all kinds of frames: uPVC, aluminium, timber and composite, plus patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We’re often asked to deal with mastic that’s falling out in pieces and gaps between the frame and the inside reveal, on aluminium frames, patio & French doors and uPVC windows.
Outdoor sealant needs a dry surface, so window work around Lownie Moor is planned around the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Lownie Moor (DD8)
- Wider area
- Angus
- Cover
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What we are called out for in Lownie Moor
Joint shape matters as much as the product. A thin smear across a wide gap has nothing to it, and a gap filled solid can’t flex. That is what backing rod is for.
People normally contact us when they notice something like this:
- White mastic on grey or black frames
- Old mastic that has gone black or come away
- Water coming in at the bottom corners of a door
- Rushed sealant from a window installation
Around Lownie Moor, as everywhere, window mastic is only as good as the preparation behind it.
Comparing quotes
- Whether you can choose the colour
- Is VAT in the price?
- Who does the work, and how experienced they are
- When the joint can take water or movement
More services for Lownie Moor
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Housing providers, facilities teams and property managers book us too in Lownie Moor and across Angus. We can quote a run of properties together, and we are fully insured for the work.
What happens on the day
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a few frames, or a day or more for a whole house. Outdoor work around Lownie Moor depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Mention any parking rules near the property
- Mention if the joints have been sealed before
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear price.
Related advice
What window mastic looks like in Lownie Moor
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
Whether the job is in Lownie Moor itself or nearby, the right material for each joint matters as much as a neat finish.
Lownie Moor is about 2 miles south-east of Forfar, in Angus. For window mastic in and around Lownie Moor, please send an email to info@mrmastic.co.uk for a quick quote. We are based in Crawley and cover Angus, Lownie Moor included. Our Angus coverage runs to 40 places, Lownie Moor among them. You can also see our page for Dundee, about 12 miles away.
All of DD8 is within our area for window mastic, from the main roads to the quietest streets. Nearby, we also carry out window mastic in Kingsmuir (1 mile north), Hillend (1 mile east), Craichie (2 miles south-east), Forfar (2 miles north-west) and Lunanhead (2 miles north). We also work in nearby towns such as Arbroath (11 miles south-east), Carnoustie (10 miles south-east), Kirriemuir (7 miles north-west), Brechin (10 miles north-east), Hunter's Town (10 miles south-east) and Gardynebourg (10 miles south-east).
Landmarks near Lownie Moor
Around Lownie Moor, our work takes us to homes and buildings near Reid Park and the streets around them. A little further out are Forfar Castle (2 miles north-west) and Forfar Infirmary (1.6 miles north-west). For a walk, there’s Loch Fithie.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Why it’s worth doing now in Lownie Moor
Running fresh sealant over the old joint is tempting, but it will not grip old, dirty sealant. It peels before long, and water still gets in behind. The old mastic has to come out. In a place like Lownie Moor, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
What you get with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Trusted Arbo and Everbuild sealants
- ARBOMaster approved applicator
- Over 20 years’ experience
Take a look at our cost guide or our reviews.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Damp coming through the wall itself rather than the frame joint
- A frame that has rotted at the joint
- A failed sealed unit that has misted up
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
Joints and surfaces we work on
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Patio & French doors
- Composite doors
- Window sills
Different surfaces, different methods
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.